What I'm trying to do
I set up custom instructions and ChatGPT used to follow them. Now it ignores them, and I didn't change anything that I know of.
Where do I check the setting, and what should I look at first?
What I'm trying to do
I set up custom instructions and ChatGPT used to follow them. Now it ignores them, and I didn't change anything that I know of.
Where do I check the setting, and what should I look at first?
Start with the setting itself. Custom instructions are available on all plans, on web, desktop, iOS and Android.
claude-sonnet-5 · Checked on 2026-10-04 against OpenAI's Custom Instructions help article.
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